Question

How do police administration Examination b.A 1st clear ?​

Answer 1

if the ratio of length and breadth of rectangle is 3:2 and it's perimeter is 40 then length of rectangle is

Explanation:

let length=3x

breadth=2x

perimeter=2(l+b)

40=2(3x+3x)

40=10x

x=40 length is 3×4 =12

and breadth is 2×4=8